Graettinger Iowa Climate Data

Monthly Average Climate Data for Graettinger Iowa

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.5 °F24.5 °F0.78 in.
February11.5 °F28.8 °F0.88 in.
March23.4 °F41.5 °F1.74 in.
April35.5 °F57.4 °F3.44 in.
May47.9 °F69.5 °F4.54 in.
June59.0 °F79.8 °F5.09 in.
July62.3 °F83.0 °F3.81 in.
August59.6 °F80.3 °F3.88 in.
September51.0 °F74.8 °F3.23 in.
October38.2 °F60.9 °F2.34 in.
November25.0 °F44.1 °F1.4 in.
December13.9 °F29.8 °F1.04 in.
Annual36.2 °F56.2 °F32.17 in.

Climate Data for Graettinger Iowa

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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